#12 PH150A Feb17 GSI panel

#12 PH150A Feb17 GSI panel - GSI STUDY PANEL PH 150 A...

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GSI STUDY PANEL PH 150 A Spring 2010 2/17/2010 • Thomas Leong • Katherine Hung • Joshua Gruber • Miranda Worthen • Farnaz Vahidnia • Ben Chaffee Study 1 Use of drinking water disinfection systems to reduce diarrhea rates in BCS, Mexico Joshua Gruber, MPH Use of drinking water disinfection systems to reduce diarrhea rates in BCS, Mexico Background 1.5-2 million children <5 years die every year from gastrointestinal illness (diarrhea) world wide Diarrhea pathogens are transmitted through fecal- oral pathways Most of this disease is attributed to un-safe drinking water , poor hygiene , and inadequate sanitation in the resource poor countries Setting Rural Baja California Sur, where households rely on well water contaminated with fecal material for drinking purposes Purpose To study the impact of using a household drinking water disinfection system on the rates of diarrhea among children under the age of 5 years in rural Baja California Sur, Mexico. Use of drinking water disinfection systems to reduce diarrhea rates in BCS, Mexico Question 1 What is the TARGET population? Children under the age of 5 years, living in resource poor conditions in BCS Question 2 What are the EXPOSURE and OUTCOME of interest? EXPOSURE: Household drinking water disinfection system OUTCOME: Gastrointestinal illness (diarrhea) Use of drinking water disinfection systems to reduce diarrhea rates in BCS, Mexico Study Description 400 houses in rural BCS were visited by the field team to invite study participants into the study. After informed consent, and enrollment protocols were completed, investigators randomly assigned 200 households to receive a household drinking water disinfection system. Over the next year the field team visited all 400 households every month to determine how many episodes of diarrhea children <5 years had experienced Question 3 What is the study design? Randomized Control Trial Key Words: ‘ randomized’ ‘assigned Use of drinking water disinfection systems to reduce diarrhea rates in BCS, Mexico Study Description ( con t ) 25 of the households randomized to ‘disinfection system’ stopped using their system 50 of the ‘control ’ households decided to buy systems on their own. I decide to drop these houses from the analysis.
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#12 PH150A Feb17 GSI panel - GSI STUDY PANEL PH 150 A...

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